/Engine/Source/Runtime/Engine/Public/ShowFlags.h
Allows to iterate through all flags (if you want to change or read the actual flag settings you need to pass in your own instance ofFEngineShowFlags). Use this function instead of writing your own parser. not optimized for performance implement a class with bool OnEngineShowFlag(uint32 InIndex, const FString& InName) which should return true to parse further
template<class T> static void IterateAllFlags &40; T & Sink, const TCHAR &42; CommaSeparatedNames &41;